30978420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 101352384

約数和(自身を除く): 70373964

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 121, 132, 165, 170, 187, 204, 220, 242, 251, 255, 330, 340, 363, 374, 484, 502, 510, 561, 605, 660, 726, 748, 753, 935, 1004, 1020, 1122, 1210, 1255, 1452, 1506, 1815, 1870, 2057, 2244, 2420, 2510, 2761, 2805, 3012, 3630, 3740, 3765, 4114, 4267, 5020, 5522, 5610, 6171, 7260, 7530, 8228, 8283, 8534, 10285, 11044, 11220, 12342, 12801, 13805, 15060, 16566, 17068, 20570, 21335, 24684, 25602, 27610, 30371, 30855, 33132, 41140, 41415, 42670, 46937, 51204, 55220, 60742, 61710, 64005, 82830, 85340, 91113, 93874, 121484, 123420, 128010, 140811, 151855, 165660, 182226, 187748, 234685, 256020, 281622, 303710, 364452, 455565, 469370, 516307, 563244, 607420, 704055, 911130, 938740, 1032614, 1408110, 1548921, 1822260, 2065228, 2581535, 2816220, 3097842, 5163070, 6195684, 7744605, 10326140, 15489210, 30978420]

約数ペア:

[(1, 30978420), (2, 15489210), (3, 10326140), (4, 7744605), (5, 6195684), (6, 5163070), (10, 3097842), (11, 2816220), (12, 2581535), (15, 2065228), (17, 1822260), (20, 1548921), (22, 1408110), (30, 1032614), (33, 938740), (34, 911130), (44, 704055), (51, 607420), (55, 563244), (60, 516307), (66, 469370), (68, 455565), (85, 364452), (102, 303710), (110, 281622), (121, 256020), (132, 234685), (165, 187748), (170, 182226), (187, 165660), (204, 151855), (220, 140811), (242, 128010), (251, 123420), (255, 121484), (330, 93874), (340, 91113), (363, 85340), (374, 82830), (484, 64005), (502, 61710), (510, 60742), (561, 55220), (605, 51204), (660, 46937), (726, 42670), (748, 41415), (753, 41140), (935, 33132), (1004, 30855), (1020, 30371), (1122, 27610), (1210, 25602), (1255, 24684), (1452, 21335), (1506, 20570), (1815, 17068), (1870, 16566), (2057, 15060), (2244, 13805), (2420, 12801), (2510, 12342), (2761, 11220), (2805, 11044), (3012, 10285), (3630, 8534), (3740, 8283), (3765, 8228), (4114, 7530), (4267, 7260), (5020, 6171), (5522, 5610)]